About

Facts for a creative decision

CoverSignal exists because a book cover has one job before anything else: earn enough attention for a reader to consider the book. Creative opinions are useful, but they often leave authors choosing between two plausible designs without evidence from the people who matter—their readers.

The service turns that decision into a controlled paid-ad test. Authors submit two finished cover concepts for the same title. CoverSignal presents each cover as a normal book advertisement to readers matched to the title's genre, measures real click behavior, and reports each cover's click-through rate, the winning variant, and the confidence in the result. Readers are not asked to vote and are not told they are taking part in a test, which keeps the behavior close to an actual launch environment.

Who it is for

CoverSignal is designed for independent authors, small publishers, and book marketers preparing a launch or relaunch. It is most useful after the creative work has produced two production-ready covers and before a larger print or advertising commitment is made. It is not a cover-design studio, manuscript-evaluation service, or promise of future sales.

What to expect

A test costs $179 USD, including the advertising spend, and normally finishes within 72 hours. The result is directional evidence about initial reader attention. Sales still depend on the title, description, reviews, price, audience, advertising, and the book itself. CoverSignal keeps the scope narrow so the answer is useful: for these two covers, shown in the same market conditions, which one earned more clicks?